John Deere 8850 tractor specifications

1982 - 1988

1982 - 1988 8050 SeriesFour-wheel Drive (4WD) tractor

Series:

Series:8650 ← 88508960 ↓

1982 - 1988

8050 Series

Four-wheel Drive (4WD) tractor

Production

Production
Manufacturer:	John Deere
Type:	Four-wheel Drive (4WD) tractor
Factory:	Waterloo, Iowa, USA
Original price:	$97,562 (1983 )
The 8650 was the middle model of John Deere's 50-series four-wheel drive tractors that were first available in 1982. Efficiency was the advertising focus, noting that these tractors could be used throughout the season, not simply for tillage. The 8650 was able to plant and cultivate 30-inch rows, and perform a variety of field operations with its draft-control hitch and full-power PTO.

John Deere 8650 Power

John Deere 8650 Power
Engine:	290 hp 216.3 kW
PTO (claimed):	235 hp 175.2 kW
Drawbar (tested):	219.93 hp 164.0 kW
PTO (tested):	238.56 hp 177.9 kW
power test details ...

John Deere 8650 Engine

John Deere 8650 Engine
John Deere 10.1L 6-cyl diesel
Engine details ...

Mechanical

Mechanical
Chassis:	4x4 articulated 4WD
Final drives:	inboard planetary
Differential lock:	electro-hydraulic front and rear
Steering:	articulated power
Brakes:	hydraulic wet disc
Cab:	Sound-Gard cab with air-conditioning
Transmission:	16-speed partial power shift
Transmission details ...

Capacity

Capacity
Fuel:	214 gal 810.0 L
Hydraulic system:	37.5 gal 141.9 L

Hydraulics

Hydraulics
Type:	closed center constant-pressure
Capacity:	37.5 gal 141.9 L
Valves:	2 to 4
Pump flow:	32 gpm 121.1 lpm

Tractor hitch

Tractor hitch
Rear Type:	III/IIIN
Control:	lower-link draft sensing
Rear lift:	9260 lbs 4200 kg

Power Take-off (PTO)

Power Take-off (PTO)
Rear PTO:	independent*Optional
Clutch:	hydraulic wet disc
Rear RPM:	1000 (1.75)

Dimensions & Tires

Dimensions & Tires
Wheelbase:	125 inches 317 cm
Weight:	29320 to 30270 pounds
Front tire:	18.4-38
Rear tire:	18.4-38
Full dimensions and tires ...

John Deere 8650 attachments

John Deere 8650 attachments
blade
Attachment details ...

8650 Serial Numbers

8650 Serial Numbers
Location:	Serial number plate on the rear of the tractor.
1982:	1500
1983:	3000
1984:	5001
1985:	7001
1986:	8001
1987:	8501
1988:	9001
how to read serial numbers...

Electrical

Electrical
Ground:	negative
Charging system:	alternator
Charging amps:	110
Batteries:	2
Battery CCA:	975
Battery volts:	6

Production

Production Manufacturer:John Deere
Type:Four-wheel Drive (4WD) tractor
Factory:Waterloo, Iowa, USA
Original price:$122,694 (1983 )
The model 8850 was the largest of the four-wheel drive tractors that John Deere unveiled in 1982. Its big V-8 was a departure from John Deere's usual engine design. The 8850 had an available full-power PTO and Load-and-Depth control three-point hitch.

John Deere 8850 Power

John Deere 8850 Power Engine:370 hp
275.9 kW
PTO (claimed):300 hp
223.7 kW
Drawbar (tested):269.77 hp
201.2 kW
PTO (tested):303.99 hp
226.7 kW
power test details ...

1982 - 1988

8050 Series

Four-wheel Drive (4WD) tractor

Series:

Series:	8650 ←	8850
		8960 ↓

Nebraska Tractor Test 1434

Nebraska Tractor Test 1434
Diesel Quad-Range 4WD May 11 - 21, 1982 Link: Nebraska Tractor Test 1434 file
PTO performance
Power at rated engine speed:	303.99 hp 226.7 kW
Fuel use:	19.3 gal/hour 73.1 l/hour
Drawbar performance
Max power:	269.77 hp 201.2 kW
Fuel use:	19.2 gal/hour 72.7 l/hour
Max pull:	35,330 lbs 16025 kg

John Deere 8850 Engine

John Deere 8850 Engine John Deere 15.7L 8-cyl diesel Engine details ...

1982 - 1988

8050 Series

Four-wheel Drive (4WD) tractor

Series:

Series:	8650 ←	8850
		8960 ↓

Engine Detail

Engine Detail
John Deere
intercooled turbocharged diesel
8-cylinder
liquid-cooled V8
Displacement:	955 ci 15.7 L
Bore/Stroke:	5.51x5.00 inches 140 x 127 mm
Power:	370 hp 275.9 kW
Compression:	15.5:1
Rated RPM:	2100
Starter volts:	12
Oil capacity:	51 qts 48.3 L
Coolant capacity:	78 qts 73.8 L

Mechanical

Mechanical Chassis:4x4 articulated 4WD
Final drives:inboard compound planetary
Differential lock:electro-hydraulic front and rear
Steering:articulated power
Brakes:power wet disc
Cab:Sound-Gard cab with air-conditioning
Transmission:16-speed partial power shift
Transmission details ...

1982 - 1988

8050 Series

Four-wheel Drive (4WD) tractor

Series:

Series:	8650 ←	8850
		8960 ↓

Transmission

Transmission
Transmission:	Quad-Range
Type:	partial power shift
Gears:	16 forward and 6 reverse
Clutch:	Perma-Clutch hydraulic wet discs
Oil capacity:	182 qts 172.2 L
Tractor must be stopped to select one of four ranges. Clutchless power shift between speeds 1-2 and 3-4 in range. A synchronized shift (using clutch) can be made between 2 and 3 in range.

Speeds

Speeds
20.8-38 tires

Capacity

Capacity Fuel:240 gal
908.4 L
Hydraulic system:45.5 gal
172.2 L

Hydraulics

Hydraulics Type:closed center constant-pressure
Capacity:45.5 gal
172.2 L
Valves:3 to 4
Pump flow:44 gpm
166.5 lpm

Tractor hitch

Tractor hitch Rear Type:4/4N
Control:lower-link draft sensing
Rear lift:10,250 lbs
4649 kg

Power Take-off (PTO)

Power Take-off (PTO) Rear PTO:independent*Optional
Clutch:hydraulic wet disc
Rear RPM:1000 (1.75)

Dimensions & Tires

Dimensions & Tires Wheelbase:133 inches
337 cm
Weight:37480 to 37700 pounds
Front tire:20.8-38
Rear tire:20.8-38
Full dimensions and tires ...

1982 - 1988

8050 Series

Four-wheel Drive (4WD) tractor

Series:

Series:	8650 ←	8850
		8960 ↓

John Deere 8850 Tires

John Deere 8850 Tires
Ag front:	20.8-38
Ag rear:	20.8-38
Ag front:	20.8-42
	23.1-34
	24.5-32
	30.5L-32
	20.8-42
Ag rear:	20.8-42
	23.1-34
	24.5-32
	30.5L-32
	20.8-42

Dimensions

Dimensions
Wheelbase:	133 inches 337 cm
Length:	257.8 inches 654 cm
Shipping weight:	37,480 lbs 17000 kg
Operating weight:	37,700 lbs 17100 kg
Front axle:	4.331 by 127.5 inches 110 by 3238 mm
Rear axle:	4.331 by 127.5 inches 110 by 3238 mm

John Deere 8850 attachments

John Deere 8850 attachments blade Attachment details ...

1982 - 1988

8050 Series

Four-wheel Drive (4WD) tractor

Series:

Series:	8650 ←	8850
		8960 ↓

Blade

Blade
Type:	front-mount John Deere 866
Width:	168 inches 426 cm
Height:	38 inches 96 cm
Lift height:	20 inches 50 cm
Angle:	18°
Cut depth:	6 inches 15 cm
Lift type:	hydraulic
Angle type:	hydraulic

8850 Serial Numbers

8850 Serial Numbers Location:Serial number plate on the rear of the tractor.
1982:2000
1983:4000
1984:5101
1985:6001
1986:6501
1987:7001
1988:7501

how to read serial numbers...